[asterisk-bugs] [JIRA] (ASTERISK-29235) res_pjsip_nat: Contact is rewritten on REGISTER responses with external_signaling_address

Brian Paboojian (JIRA) noreply at issues.asterisk.org
Wed Jan 6 18:11:16 CST 2021


    [ https://issues.asterisk.org/jira/browse/ASTERISK-29235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=253302#comment-253302 ] 

Brian Paboojian commented on ASTERISK-29235:
--------------------------------------------

SIP settings;
[0.0.0.0-udp]
type=transport
protocol=udp
bind=0.0.0.0:5060
external_media_address=192.168.60.239
external_signaling_address=192.168.60.239
allow_reload=no
tos=cs3
cos=3

> res_pjsip_nat: Contact is rewritten on REGISTER responses with external_signaling_address
> -----------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-29235
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29235
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip_nat, Resources/res_pjsip_registrar
>    Affects Versions: 13.36.0, 16.13.0
>         Environment: Freepbx 15 distro
>            Reporter: Brian Paboojian
>            Assignee: Unassigned
>            Severity: Minor
>              Labels: fax, webrtc
>         Attachments: eth1-EM.pcap, eth1-NAT.pcap
>
>
> I am testing SD-Wan with my Ribbon Edgemarc. The phone is sending the registration to the eSBC and then the SBC forwards the registration onto the Freepbx 15 system. Asterisk is rewriting the contact header when it sends the registration back to the phone and the Edgemarc is blocking it because this rewrite is a violation of RFC 3261. I have turned off contact rewrite in extension advanced settings. In reviewing the pcap reveal the contact header is still being rewritten.
> I have confirmed this setting in the config file Pjsip.endpoint.conf;
> rewrite_contact=no
> I worked with a Freepbx Engineer and he agrees this is an Asterisk bug.



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